Mentioned in "TextCat and Confidence" as a possible confidence measure, the ratio of first to second result scores was not investigated as part of the overall TextCat improvement.

The idea is that if the best score is *x,* then it is more likely to be correct if the second best score is *x*+50% than if the second best score is *x*+10%. The new config will require a gap of 6% (as less than that is too ambiguous to even consider).

This should be a quick test; if it turns out to be worthwhile, implementing it properly will be more work.